Typical malarial doses of quinine considerably exceed the content of grocery-retail store tonic water, and it was advised for cramps by my medical doctor, and seems to work nicely. Tinnitus seems to be an issue, for me in any case, that may/will drive me nutso Briefly buy. Returns Non-returnable resulting https://blndwater.com/products/blnd-lemon-and-mint-tonic-water-250ml